340242512 has 20 divisors (see below), whose sum is σ = 660100980. Its totient is φ = 169893888.

The previous prime is 340242509. The next prime is 340242521. The reversal of 340242512 is 215242043.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45914176 + 294328336 = 6776^2 + 17156^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523 + ... + 26130.

It is an arithmetic number, because the mean of its divisors is an integer number (33005049).

Almost surely, 2^340242512 is an apocalyptic number.

It is an amenable number.

340242512 is a deficient number, since it is larger than the sum of its proper divisors (319858468).

340242512 is a wasteful number, since it uses less digits than its factorization.

340242512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28430 (or 28424 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 340242512 is about 18445.6637722799. The cubic root of 340242512 is about 698.1191084167.

Adding to 340242512 its reverse (215242043), we get a palindrome (555484555).

The spelling of 340242512 in words is "three hundred forty million, two hundred forty-two thousand, five hundred twelve".